Synthesis of new chiral imidazolium salts derived from amino acids: their evaluation in chiral molecular recognition
作者:Belén Altava、Dalgi S. Barbosa、M. Isabel Burguete、Jorge Escorihuela、Santiago V. Luis
DOI:10.1016/j.tetasy.2009.03.028
日期:2009.5
A family of new imidazolium salts derivedfrom natural amino acids has been synthesized and tested for NMR enantiodiscrimination, as chiral shift reagents, of carboxylic acids. These imidazolium receptors contain different structural modifications and the splitting of the signals of the acids, after addition of the corresponding CSRs, depends on these structural variables. Compound 8b exhibited the